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Finding the Fourth Proportional to 28,241.60, 42,353.74 and 9,516.62

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Solution

The fourth proportional to 28,241.60, 42,353.74 and 9,516.62 is: 14,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.60 : 42,353.74 = 9,516.62 : x
  2. Step 2: Convert to fraction form
    28,241.60/42,353.74 = 9,516.62/x
  3. Step 3: Cross multiply
    28,241.60x = 42,353.74 × 9,516.62
  4. Step 4: Simplify right side
    28,241.60x = 403,064,449.16
  5. Step 5: Solve for x
    x = 403,064,449.16/28,241.60
  6. Step 6: Final answer
    x = 14,272.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.